The formula for the surface area of a cylinder is 2nr(r + h) where r is the radius of the cylinder's base and h is its height.
A certain pole has a cylinder-like shape, where the base's radius is 10 centimeters and the height is 2
meters.
What calculation will give us the estimated surface area of the pole in square centimeters?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2